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3-2-1 Contact - Season 1 Episode 40 Light/Dark: Light Sources

Trailer
Marc proposes to burn a hole through a piece of cardboard using a magnifying glass and the sun. It doesn't harm the cardboard, but Lisa and Trini get the message.REHASHED FROM THE PREVIOUS FOUR EPISODES: Trini discovers a boy whose vision was improved with a cornea transplant. Trini uses a prism to split white light into the color spectrum. Lisa witnesses an infrared camera. Marc learns that butterflies and flowers bear ultraviolet light. Trini visits an observatory whose telescope studies the sun. ANIMATION: How the eye sees.ADDITIONAL: Lisa examines lasers. Marc encounters a solar-energy research lab.

First Air Date: Jan 14, 1980

Last Air date: Nov 18, 1988

Season: 7 Season

Episode: 223 Episode

Runtime: 30 minutes

IMDb: 7.00/10 by 6.00 users

Popularity: 17.156

Language: English

Keyword :
Episode Noisy/Quiet: Production & Processing of Sound Noisy/Quiet: The Ear Noisy/Quiet: How People & Animals Use Sound Noisy/Quiet: Music Noisy/Quiet: Range of Vibration Forces and Motion Forces and Fields Forces: Buoyancy and Gravity Forces and Machines Forces: A Spectacle of Forces Growth/Decay: Sex and Seeds Growth/Decay: Human Growth Growth/Decay: Decay Growth/Decay: Human Cultures/Land Forms Growth/Decay: Cycles Upon Cycles Fast/Slow: Speed Up, Slow Down Fast/Slow: Rhythms of Nature Fast/Slow: Lifetimes Fast/Slow: Speed and Racing Fast/Slow: Time and Time Again Communication: Human Communication Communication: Animal Communication Communication: Machinery of Communication Communication with Other Species Communication: Feedback Food/Fuel: Animal Food Food/Fuel: Human Food Food/Fuel: Growing and Processing Food Food/Fuel: Fueling Machines Food/Fuel: The Sun Makes Everything Go Hot/Cold: People's Temperatures Hot/Cold: Animal and Plant Adaptations Hot/Cold: How Hot or Cold Can It Get? Hot/Cold: Heat and Work Hot/Cold: Temperatures on Earth/In Space Light/Dark: The Sun Light/Dark: Electromagnetic Spectrum Light/Dark: The Eye Light/Dark: Light Sources Near/Far: Seeing Isn't Always Believing Near/Far: Mapping and Navigating Near Home Near/Far: Mapping and Navigating Over Earth Near/Far: Space Travel Near/Far: Knowing Where You Are Order/Disorder: Regular Patterns Order/Disorder: The Body – An Ordered System Order/Disorder: Social Order Order/Disorder: Disordered Order/Disorder: Sum of Its Parts Surfaces: Protection Surfaces: Shapes and Functions at the Surface Surfaces: Surface Tension and Bubbles Surfaces: Surface of the Earth Surfaces: The Atmosphere Big/Small: Animal Sizes/Scaling Big/Small: Animal Habitats Big/Small: Dinoaurs Big/Small: Volume & Efficiency Big/Small: How Big is Big? Crowded/Uncrowded: Human Crowding Crowded/Uncrowded: Optimum Populations in Nature Crowded/Uncrowded: Contrasts in Densities of Materials Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids) Crowded/Uncrowded: Human Survival/Controlling Densities